2. VENUS: EARTH'S TWIN SISTER
✪ 2nd planet from the Sun, Venus is the brightest planet in the Solar System and the brightest object after Sun and Moon when seen from earth.
✪ Venus is called after the Roman Goddess of love and beauty.
VENUS PROFILE
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Mass
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4.87 x 1024 kg
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Diameter
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12104 km
|
Mean density
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5250 kg/m3
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Average distance from Sun
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108,208,930 km (0.723 AU)
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Rotation period (length of day in Earth days)
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243.02 (retrograde)
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Revolution period (length of year in Earth days)
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224.7
|
Mean surface temperature
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452.85°C (726 K)
|
Atmospheric components
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96% carbon dioxide, 3% nitrogen, 0.1% water vapour
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✪ Venus is known as morning star because it rises just before the rise of sun, when it is west of sun and on the other hand when it is east of the sun, Venus is known as evening star as shines just after the sunset.
✪ Venus is the only planet in the Solar System to turn clockwise (East to West). All other planets turn anti-clockwise.
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| Venus' Size Compared to the Size of Earth |
✪ Venus has phases like the moon because the orbit of Venus is between the Earth and the Sun.
✪ Venus has no orbiting moons like mercury.
✪ Venus is the planet which is closest to the Earth and is a little smaller than the Earth but it looks bigger than the earth because of thick atmosphere (deep layers of gases that surrounds the planet).
✪ The diameter
of the Earth (the distance right round the middle of the Earth at the
equator) is 12,760 km (7926 miles). The diameter of Venus is 12,103 km
(7520 miles).
✪ Venus is the hottest planet
in the Solar System, even hotter than Mercury, which is closer to the
Sun. The temperature on the surface of Venus is about 847.13° Fahrenheit
or 452.85°C (726 K) because
the surface is heated by radiation from the sun, but the heat cannot
escape through the clouds and layer of carbon dioxide (called "Greenhouse Effect.").
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